1. Lucy says she refuses to see Mike but I’m sure she (will / is about to) change her mind sooner or later.
2. Listen! He (will / is about to) start singing.
3. Suzan (will / is going to) show her when she arrives.
4. Take a look outside, it (will / is going to) rain.
5. You will call her when she (will get / gets) home.